Conference,

Measurement and Analysis of the Total Electric Field for ±800kV Yunnan-Guangdong UHVDC Transmission Line

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(2013)

Abstract

± 800kV DC transmission line from Yunnan to Guangdong is the highest voltage level of the DC transmission lines in our country It is very important to carry out electromagnetic environment testing and analysis as this can verify preliminary research and therefore guide later project. This paper analyzes the total electric field characteristic, and calculates the electric field distribution of YunGuang transmission lines under different heights and respectively organize measurement during system debugging and running such as haif-voltage operation of negative debugging of negative, fullvoltage operation of negative, as well as full-voltage operation of bipolar. Based on the measurement data, this paper analyzes the influence of electric field with different operation modes, weather conditions, and altitude. At last ,The data result shows that the total electric field strength of ±800kV Yun-Guang DC transmission line meets the limit requirements.

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